kaping



Sept. 30, |924.

R. G. KAPNG 10E MAKING APPARATUS Filed Nov. 23

1921 3 Sheets-Sheet l y WJTNESSES Sept. 3G, 924.

Y R. (lA KAPNG ICE MAKING APPARATU@ Filed Nov. 23f X921 5 Sheets-Sheet 2 sept. 3Q. 1924. 1,510,324

R. G. KAPING ICE MAKING APPARATUS Filed Nov. 23, 192 I5 Sheetsheet 5 ATTORNEYS Patented Sept. 30, 1924.

umrsosre'res PATENT orrlcs.N

RUDOLPH GEO. KAPING, 0F CHICAGO, ILLINOIS.

ICE-MAKING APPARATUS.

Application led Hovember 23, 1821.

To all whom it may concern.'

Be it known that I, RUDoLPn Gnome KAPING, a citizen of the United States, and a resident of Chicago, in the county of Cook 5 and State of Illinois, have invented certain Improvements Maki of which the following 'ng Apparatus, is a specification.

his invention relates paratus.

The object of the invention is to provide a novel means for introducing air into oonz tainers or molds such d in ice making apparatus whereby the water therein may be properly agitated during freezing and t e impurities thoroughly expelled from the Water and a high quality of artificial ice produced.

It is also an object of the invention that the impurities expelled from the Water during the freezing period will not he frozen as a part of theice cake formed.

to loe making appressed air supply.

ther objects and-advantages relating,Ir to details of construction. combination and an rangement of parts will hereinafter appear in the detailed description to follow.

' by way of he invention is illustrated example in the accompanying drawings, 1n

which,

Figure l 1s n fragmentary vertical sectional vlew of a portion of anice makmo apparatus and showing an ice present invention and also the air introducing means therefor, the section being taken longitudinally of the iee mold.

ignre 2 is a View similar to Figure 1 but taken transversely of an ice mold.-

Figures 3, 4, 5, and 6 nredetail perspective views of different frms of tubes for introducing air into ice molds.

igure 7 is a vertical sectional View 'of the tube holding or retaining means provided for euch ice mold.

mold of this"i 'Figures 89, 10 and 11 are detail perV yspeetive views of the parts comprising the holder shown in Figure 7.

Referrin to the .drawings in detail 10 indicates le bottom of a freezing tank of an ice makingI apparatus, 11 the usual cool- `made apparent.

Serial No. 517,402.

ing tubes, 12 the cross supports at the top of the tank and 13 the air supply pipe for agitating the water in the different molds or containers during the freezing period.

s is well known e. number of molds or containers are positioned in the freezing tank and each lled with to freezing.

In the present instance I have provided a novel form of mold or container gener-al1 indicated by the reference numeral 14 whieli7 any shape desired, referably rectangular in cross section as s own, and mudo of light sheet metal. The bottom 15 is slightly pressed upward as seen in Figures 1 and 2 :1nd provided with a central sind 16, the purpose of which will iater be he upper end portion 16 of the mold 14 is enlarged and within the enlargement there is positioned a ller'l?. The inner dimensions of the filler corresponds to the inner dimensions of the lower end of the mold, and said filler being of a material non-conductive to heat.

For introducing air into container 14 I provide the euch mold or different types of tubes as shown in Figures 3 to 6 inclusive.

The tubes in eseh instance are made oi paper which is properly treated to make the same impervious to water. The tube 18. shown in Figure 4, is perforated substantially its entire len h as indicated. The tube 18 shown in *igure 3 differs from the tube 18 in that it is slightly longer and its lower end portion 4 is without it may be well to state that the perfor-ations end slightl f below the upper end of the tube. Th l) 4 Figure 6, is provided with a seam 5 which extends substantially the length thereof and the tube 19' sh seam 6 terminating at its lower end in an opening 7. o it may be observed that in the case of the tubes 1S shown in Figure 3 at the point where the perforationsl terminate an enlar ed openlng 8 is provided.

:'[n igure 1V gli e extending water preparatory 00 the reference `numerul 19. The manner in which these tubes introduce the air into the molds during the freezing period and the advantages obtained thereby will later be given. t

In rder to properly support the air 1ntroducing tube in the different molds 14 I provide a holding and coupling means therefor. This holding and coupling means is shown in detail in Figures 7 to 11 inclusive and comprises a tubular member 20a the bore of which ta rs from each of its ends toward its longitu inal center and thus providingl the two tapering passages 2l and 21. The tubular member 20 is positioned within a sleeve 22, said deevel having formed at its one end e collar 22 and also provided with a pair of U-shapedv slots 23, the one lugi- 24 of each slot terminating at the lower end of the sleeve While the other lug 25 of each slot is closed at its outer end as shown, Encircling the lower end of the sleeve 22 is a collar 25 which has formed therewith a retaining amge 24' und extending through the tubular member 20 is a pin 26, said pin having its ends disposed in the leg portions 25 of the Ushaped slots 23 and also having its end Secured to the collar 25 as best shown in Figure 7. As is obvious by this construetlon the sleeve 22 is free to .move upward and downward with respect to the tubular member 20. Also the sleeve carries at its upper end a washer plate 27 and between seid washer plate and the retaining flange 24 is interposed n coiled spring 2S.

In using the tube holder just described, the same is positioned as shown in Figures 1 and 2. They cross member 29 for each mold is provided with a suitable notch or insert as at 28 (Figure 2) and of suiicient width to receive the sleeve 22 of the holder. The collar 27 is pressed downwai'dl v against the tension ot' the spring 28 and in this manner the holder is positioned. As is obvioiis the spring 28 will continue to press the collar 27- upwardly and draw the sleeve 22 downwardly and in this way clamp the holder to the cross member 19.

When it is desired to use the form of tubo 1S as shown in Figure l, the seme is'inserted in the lower end of the tube 2O and due to the teperihg'lof the passage 2l the tube will be frictional'ly held against move ment. Also the tube will be retained in this -position by being pressed upwardly by the water within the mold.

Should it be desired to connect the air introducing tube 18 with the tubular members 20 by hose, I provide a groove 29 in the lower end of the tubular member 20 to give the hose a gripping action to the. tubular member 20.

When using a longer tube of the type shown in Figures 3 and 5, the same is sitioned as shown in .Figure 2 of the drawings.

'In this instance the upper end of the tube is inserted within the tapering passage 2l of the tubular member 2U und its ioni-r und telescopes the stud 16 in the bottom of the mold.

As shown in Figure the tubular incinber 2O extends slightly above the collar 22 of the sleeve 22 and which is telescopml by a suitable pipe 536 which is connected :it its other end with the air supply pipe 13. This connection may be made by a flexible hose if so desired.

It is thought from the foregoing description that the manner of supporting: the different types of air introducing tubes and connecting the same with the source of coinpressed nir supply may be cleuriy understood Without further explanation. A tube may be quickly positioned and be heid in n reliable manner.

In preparing 'for making ice, the molds or containers 14 are of course filled with unter, preferably filtered ruw or filtered nndis tilled water, and then an nir tube et the proper type may be positioned. and the freezing operation then begun. The water will freeze in the bottom and sides, of the mold and preferably the lower end ot the nir introducing ipe is spaced Jfrom the bottom of the mold) as shown. Tlux water indicated at 30 'will solidify to produce :i tormation of ice similar to that shown et 231. The air will be introduced. into the water by the tube and will escupe from tbe lower end thereof. The air will properly agitato the water and drive upward the impurities therein. 'When the ice freezes about the lower end of the introducing' tube. if u perforated tube is used, then the nir will escape from the perforations `with greater force than would be the ense if csr-spine' from the lower end of the tube. Should a seemed tube be used. the nir ivil escape first from the lower end of the tubo until the ice is formed thereahout und thon the seam will open and thus uilenY tbn nir to escape directly above the formation of ire, In either instance the :iir esrapinn will aid to lift the impilriiies to the top of the mold and maintain the weimin the proper state of agitation.

Vfhen ,tie Water in the mold is frozen to the level of the enalrgemcnt 1G the impurities will exist above the icc and snrrounded b v the insulation i? whirl] will pro vent thc freezing thereof and thus when the ice is removed rom the mold u rrystul and clear block of ice will be produced.

It is of course apparent that the :lir ini troducing tubes used uiil remain in ihe cake of ice. However, by not removing` the tube to substitute shorter ones ns is the usuai custom as the freezingr progresses upward in the mold any possibilit;v of trapping; air in the cake of ice is avoided and iikewise Uit) I Y w u the ari` Witheet {feiner-ling' from i.

a mlicaleri j. ln 2:11 im; Lli'elzirsg riprmine-r m.- molc. u mlm i. llwruin,

l'ish'l il? fralrlhill" flyiihll illy *Clim enfinrvliun ill; llf A nir pressure.

ll. "In an ice making' appel-aims, i mi miner 0r mold for freezing liquid legitwilling therein, e, paper tubular mueller lim ing :in easily pareille Team ext fling long-ihr lllimlly il# il :mil t mi :blamed lo lli rfriiemeecl lu .ffl m arranged iii lli@ mold im iiirmiiici imo mill meld when :i-aifl m'Glfi le illml will) Water, and .irl seam being; :ulfapl i s0 tl; lle air will im autumn-1'. all :iwi prog Wely mlroilu-tu mie meld er container m elfje@ proxzmltv 'in me uur rounding formellen 0f ice a: lie 51eme fi .l gresess faiwurliiv.

4. ln :ir friaaliizig 'l miner m edili e, paper uli-ei' clepeiuieg therein Surf tube lawine; :L li-rrsil Opening mijmfeiit in Elue lei w1 @mi tlwrwl' :unl lief h readily ''linglilv gleuf; @l lin@ extending from sairl ixiieiinglongltln'lizflly of' ille mlm tamu l le upper' ellll illmmf= ii im' reim @nfl will :i sfvurmel air n 5. in :1n ilfe making apparatus el ille rllarnfler described, :1. cronlainer er ilmla fmfreezing liquid, :l ulie :lvpewlingg llercn and having n sonni :ulnplm in open ngi slight presnre upen the miei-Em el: lube, will wenn; exlmef'llrsg lahggialen l lie lube :all-'l zml wlw Mel xilzigaml al arranged lx1 lle :Emili 1-=f l lll" www; muy he vmmwtvfl le :1 www nl i 'v enlplfqfwil 'm lurmlmjng :iir ff" u 'when .wml meld Filled will; www.: emi ,will beam :ulapwl i@ azilunmlieally and my maintain the introduction of air ixmitg; to the surrounding ice in Smil mel@ as ille same progresses upwardlg.

5. fin nir intmclneing means for ice ma ing melde ennrprising a tubular member 'with im sz'zrsly Separeble seam extending l-Qngzi'mliuill-y i.: 'reni 7. An .-iir int, influe-,ing means for ice making melde venire-lenig a tubular member inerme' :in easily separable seam extending m'limll' liereef and terminating adl n e laterally extending opendescribed. zel-'ling app-amne of the devi xii, a eenteiner or mold, a merle ef' rzangilile material lirmlgllcmt ils length, said -fr being; adapted to be ar l in extend longitudinally r- .adapted te be connir and emfsmg air inte Said mold i :'iled with water and au- AMilam the point el introducmm eid meld in close proxl lten the seme proim; apparatus ef the ai meld u1* container for Y miei exenffling upwardly ternir L @il .said rmlaiiner, :i cross Support; lie e @per end of the container, e flejeresslle @pple carried by Said cross apport and irs une end adapted t0 be c0nl "li il mlree nf r'ompressecl air su u nir delivery tube adapted te e pf 'mieli lmween misi sind and fr enel ci" will nipple.. lli, En Een .mailing @margine a iiquid @ging .frrnlfl er Maximilien a S extendsm .tlm hmmm thereof, a. -fm- Hm tup if seifl eonlainer, afeilflml llirfmgll Qesening in igipm'l, :i :sm-ing Where-b l my he el: pecl in peeitiim upon salir from mpgmrt, :mfl an air delivery tube elle.

RUDQLPIL G EO. KAPIN'G, 

